[  496.412318][ T2855] netem: version 1.3
[  599.318398][ T3291] ip (3291) used greatest stack depth: 24016 bytes left
[  827.052832][ T4179] ip (4179) used greatest stack depth: 23648 bytes left
[ 2735.570813][T16267] ip (16267) used greatest stack depth: 23440 bytes left
[ 3036.726912][T18857] pm_nl_ctl (18857) used greatest stack depth: 20880 bytes left